Files
BSN-Livesystem/tests/test_error_handler.py
T

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Python

"""Tests für src.error_handler — Einheitliche JSON-Error-Responses."""
from __future__ import annotations
from pydantic import BaseModel
from werkzeug.exceptions import BadRequest
from src.app import create_app
from src.config import settings
from src.error_handler import register_error_handlers
class TestErrorHandlers:
"""Tests fuer zentrale Error-Handler."""
def setup_method(self) -> None:
"""Jeder Test bekommt eine frische App mit Error-Handlern."""
self.app = create_app()
self.app.queue_handler.redis.close() # Redis-Verbindung trennen
self.client = self.app.test_client()
def test_404_returnt_json(self) -> None:
"""Nichtexistente Route → 404 mit JSON."""
response = self.client.get("/nicht_existent")
assert response.status_code == 404
data = response.get_json()
assert data["error"] == "Not Found"
assert isinstance(data["message"], str)
assert data["status"] == 404
def test_400_returnt_json(self) -> None:
"""HTTP 400 → JSON-Response mit einheitlichem Format."""
@self.app.route("/abort400")
def abort400():
raise BadRequest("Ungueltige Eingabe")
response = self.client.get("/abort400")
assert response.status_code == 400
data = response.get_json()
assert data["error"] == "Bad Request"
assert data["status"] == 400
def test_422_returnt_json(self) -> None:
"""ValidationError → 422 mit JSON."""
class UserSchema(BaseModel):
name: str
@self.app.route("/validate", methods=["POST"])
def validate():
UserSchema.model_validate({})
return "ok"
response = self.client.post("/validate", json={})
assert response.status_code == 422
data = response.get_json()
assert data["status"] == 422
assert "error" in data
def test_500_returnt_json(self) -> None:
"""Interner Serverfehler → 500 mit JSON."""
@self.app.route("/crash")
def crash():
raise RuntimeError("Test-Fehler")
response = self.client.get("/crash")
assert response.status_code == 500
data = response.get_json()
assert data["error"] == "Internal Server Error"
assert data["status"] == 500
def test_error_handler_alle_status_codes(self) -> None:
"""Alle Error-Handler sind registriert."""
specs = self.app.error_handler_spec
found = set()
for blueprint_name, codes in (specs or {}).items():
if bp_codes := codes:
for code in bp_codes:
if code is not None:
found.add(int(code))
for required in (400, 401, 404, 422, 500):
assert required in found, f"Error handler {required} fehlt"